Well, I would want to be able to have a simple setup. For the first build at least. Something to dive into the world of control audio wise a decent amount of eq control, as well as crossover control. Something that I can mess with but would be easier to fix if I mess up (best way to learn) the ability to play CD's and high quality files, as well with a tuner option. Decent sized screen would be nice, for aesthetic purpose (have to like looking at in the end!) Hopefully dash placement being option. I hope I covered the majority of there's an area I missed let me know. Price wise my theory is I don't mind saving to do it right and high quality

Just curious if anyone knows of a double din touchscreen hu that could keep up with something such as the 80prs audio control wise. I like to use cds and usbdrives, so extra points for those additionally.

The only reason I'm asking is because I can't fit that large of a battery underhood and no skills to make something to help, so I just wanted to put a little bit larger of a battery in the back! Thank you for the help!

I feel like this question has been asked, but I did scour the web and went 30 pages into this forum looking for advice. But I still have questions!
When installing a second battery, some say get the same as what's under your hood, but some say it doesn't matter. Opinions?
How do you suggest securing it in a trunk?
For a battery such as an xs, do I need to put it in some sort of case?
If the batteries are wired in parallel, do I need to hook up my speakers and sub to the second or can I just leave them on the front and the rear battery will flow through it?
These are just a few examples of questions because I am completely blind and when it comes to power supply I really do not want anything not done right, but any input small or large would be appreciated!